Manufacture of embossed laoe paper



(Model.)

0. LANG.-

MANUFACTURE OF EMBOSSED LACE PAPER. No. 247.368. Patentd Sept. 20,1881.

wvwk'w. (.MMMA Low 93 UNITE STATES PATENT OFFrca.

CHARLES LANG, OF BROOKLYN, NEW YORK, ASSIGNOR TO WALDEMAR A. WALTHER, OFSAME PLACE.

MANUFACTURE OF EM BOSSED- LACE-PAPER.

SPECIFICATION forming part of Letters Patent No. 247,368, datedSeptember 20, 1881.

Application filed May 11, 1881. (ModeL) To all whom it may concern Be itknown that I, CHARLES LANG, a citizen or" the United States, residing atBrooklyn, in the county of Kings and State of New York, have inventednew and useful Improvements in the Manufacture of Embossed Lace- Paper,of which the following is a specification.

My invention consists in embossed lace-paper the perforations of whichhave smooth edges on both sides of the paper, also, in producing theperforations in lace-paper by an abrading or rubbing action instead ofby means of punches; further, in the combination, with aproperly-engraved roller, of a brush which acts on the paper passingover theengraved roller, so as to produce the desired perforations;also, in the combination, with the engraved roller and the brush, ofmechanism for imparting to said brush a lateral as well as a rotatingmotion; further, in the combination, with the engraved roller and thebrush, of an embossing-roller, whereby a continuous strip of paper canbe perforated and embossed at 2 5 one operation.

This invention is illustrated in the accompanying drawings, in whichFigure 1 represents a sectional side view of my machine, the line :10:r, Fig. 2, indicating the plane of section.

Fig. 2 is a front view of the same. Fig.3 is a transverse verticalsection in the plane 3/ Fig. 2.

Similar letters indicate corresponding parts.

In the drawings, the letter A designates a frame, which forms thebearings for a shaft, B, on which is mounted a brush, 0; also for ashaft, D, on which is mounted an engraved roller, E, and fora shaft, F,on which is mounted an embossing-roller, G. The journal-boxes a,

a, which form the bearings for theshaft B of the brush, are adjustableby means of set-screws b b, so that the brush can be brought into theproper positidn in relation to the engraved roller, and thejournal-boxes c c, which form the bearings for the shaft D of theengraved roller, are adjustable by set screws d (I, so that saidengraved roller can be brought into the proper position in regard to theembossingroller. The shafts of the engraved roller and of theembossing-roller are geared together, so that these two rollers revolvewith precisely the same superficial velocity. On the shaftB of the brushis mounted a small pulley, e, by means of which a rapid revolving motionis imparted to the said brush, and the shaft B slides in its bearingsand receives a slow reciprocating motion in the direction of its lengthby means of a cam, j, which is mounted on the shaft D of the engravedroller, and acts on the end of the shaft B, which is pressed up againstit by spring 9.

The paper which is to be manufactured into lace-paper is cut into stripsof the desired width, and of any desired length, and these strips ofpaper are passed one after the other through my machine, (as indicatedby a dotand stroke line in Fig. 3,) being drawn in by the action of thetwo rollers E and G. As the paper passes over the engraved roller E itis exposed to the action of the brush (J, and all those portions of thepaper which bear upon the elevated parts of the engraved roller arerubbed or abraded, so that perforations are produced in the paper, whichcorrespond to the design of the engraved roller. After the paper 7 5 hasbeen perforated by the rubbing action of the brush it passes downbetween the engraved roller E and the embossing'roller G, and by thecombined action of these two rollers it is embossed.

The brush 0, which I use by preference, is made of bunches of finesteel-wire, and I, im-- part to the brush a reciprocating motion in thedirection of its axis, so that its points will wear off uniformly. Theperforations produced in the paper by the rubbing action of the brushcan readily be distinguished from perforations produced by punchesorother equivalent means heretofore used in the manufacture oflace-paper, since the perforations produced by punches show burrs orbeards on one side,while the perforations produced by the rubbing actionare perfectly smooth on both sides.

Instead of the brush which I have shown in the drawings, 1 can use adrum covered with 5 sand, ground glass, or emery, or any equivalentmaterial, or as above, and the brush may be made of iron wire, brasswire, or of any metal wire suitable for the purpose.

that I claim as new, and desire to secure 00 roller, the brush, andmechanism for imparting a lateral as well as a revolving motion to thisbrush.

5. The combination, substantially as hereinbefore described, of theengraved roller, the brush, the embossing-roller, and mechanism forimparting a revolving motion to each of said devices.

In testimony whereof I have hereunto set my hand and seal in thepresence of two subscribing witnesses.

CHARLES LANG. 1,. s.]

Witnesses W. HAUFF, E. F. VKASTENHUBER.

